@bg: #EDF2F0;
@neu-1: #ecf0f3;
@neu-2: #d1d9e6;
@white: #f9f9f9;
@gray: #a0a5a8;
@broder_gray: rgba(210, 210, 210, 0.5);
@black: #181818;
@purple: #4B70E2;
@transition: 1.25s;

.main {
  height: 650px;
  position: relative;
  padding: 25px;
  background-color: @neu-1;
  overflow: hidden;
}

.container {
  display: flex;
  justify-content: center;
  align-items: center;
  position: absolute;
  top: 0;
  width: 600px;
  height: 100%;
  padding: 25px;
  background-color: @neu-1;
  transition: @transition;
}

.form {
  width: 100%;
  height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;

  &__icon {
    object-fit: contain;
    width: 30px;
    margin: 0 5px;
    opacity: .5;
    transition: .15s;

    &:hover {
      opacity: 1;
      transition: .15s;
      cursor: pointer;
    }
  }

  &__input {
    width: 350px;
    height: 40px;
    margin: 4px 0;
    padding-left: 25px;
    font-size: 13px;
    letter-spacing: .15px;
    border: none;
    outline: none;
    font-family: 'Montserrat', sans-serif;
    background-color: @neu-1;
    transition: .25s ease;
    border-radius: 8px;
    box-shadow: inset 2px 2px 4px @neu-2,
      inset -2px -2px 4px @white;

    &:focus {
      box-shadow: inset 4px 4px 4px @neu-2,
        inset -4px -4px 4px @white;
    }
  }

  &__span {
    margin-top: 30px;
    margin-bottom: 12px;
    letter-spacing: 1px;
  }

  &__link {
    color: @black;
    font-size: 15px;
    margin-top: 25px;
    text-decoration: none;
    border-bottom: 1px solid @gray;
    line-height: 2;
    cursor: pointer;
    font-weight: bold;
    letter-spacing: 1px;

    &:hover {
      color: @purple;
    }
  }
}

.switch__title {
  position: relative;
  bottom: 30px;
}

.title {
  position: relative;
  font-size: 34px;
  font-weight: 700;
  line-height: 3;
  color: @black;
}

.description {
  font-size: 14px;
  letter-spacing: .25px;
  text-align: center;
  line-height: 1.6;
}

.button {
  width: 180px;
  height: 50px;
  border-radius: 25px;
  margin-top: 50px;
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 1.15px;
  background-color: @purple;
  color: @white;
  box-shadow: 8px 8px 16px @neu-2,
    -8px -8px 16px @white;
  border: none;
  outline: none;
}

.a-container {
  z-index: 100;
  left: calc(100% - 600px);
}

.b-container {
  left: calc(100% - 600px);
  z-index: 0;
}

.switch {
  display: flex;
  justify-content: center;
  align-items: center;
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 400px;
  padding: 50px;
  z-index: 200;
  transition: @transition;
  background-color: @neu-1;
  overflow: hidden;
  box-shadow: 4px 4px 10px @broder_gray,
    -4px -4px 10px @broder_gray;

  &__circle {
    position: absolute;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background-color: @neu-1;
    box-shadow: inset 8px 8px 12px @neu-2,
      inset -8px -8px 12px @white;
    bottom: -60%;
    left: -60%;
    transition: @transition;

    &--t {
      top: -30%;
      left: 60%;
      width: 300px;
      height: 300px;
    }
  }

  &__container {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    position: absolute;
    width: 400px;
    padding: 50px 55px;
    transition: @transition;
  }

  &__button {
    cursor: pointer;

    &:hover {
      box-shadow: 6px 6px 10px @neu-2,
        -6px -6px 10px @white;
      transform: scale(.985);
      transition: .25s;
    }

    &:active,
    &:focus {
      box-shadow: 2px 2px 6px @neu-2,
        -2px -2px 6px @white;
      transform: scale(.97);
      transition: .25s;
    }
  }
}

.submit {
  cursor: pointer;

  &:hover {
    box-shadow: 6px 6px 10px @neu-2,
      -6px -6px 10px @white;
    transform: scale(.985);
    transition: .25s;
  }

  &:active,
  &:focus {
    box-shadow: 2px 2px 6px @neu-2,
      -2px -2px 6px @white;
    transform: scale(.97);
    transition: .25s;
  }
}

.is-txr {
  left: calc(100% - 400px);
  transition: @transition;
  transform-origin: left;
}

.is-txl {
  left: 0;
  transition: @transition;
  transform-origin: right;
}

.is-z200 {
  z-index: 200;
  transition: @transition;
}

.is-hidden {
  visibility: hidden;
  opacity: 0;
  position: absolute;
  transition: @transition;
}

.is-gx {
  animation: is-gx @transition;
}

@keyframes is-gx {
  0%, 10%, 100% {
    width: 400px;
  }
  30%, 50% {
    width: 500px;
  }
}